GRT300 4-Wire Earth Ground Resistance Tester
SKU: GRT300
The GRT300 measures earth ground in 4 ranges from 2 to 2000 Ohm. 4-wire, 3-wire, and 2-wire testing. Large dual line LCD. Automatic I (current) and P (potential) spike check. Test Hold function for easy operation. Autoranging, Automatic Zero adjustment, Data Hold and Auto Power off. AC Earth Voltage. Overrange and low battery indication. Complete with test leads with alligator clips, 4 auxiliary earth bars, hard carrying case, and eight 1.5V AA batteries.
List price. Volume pricing available.
The GRT300 measures earth ground in 4 ranges from 2 to 2000 Ohm. 4-wire, 3-wire, and 2-wire testing. Large dual line LCD. Automatic I (current) and P (potential) spike check. Test Hold function for easy operation. Autoranging, Automatic Zero adjustment, Data Hold and Auto Power off. AC Earth Voltage. Overrange and low battery indication. Complete with test leads with alligator clips, 4 auxiliary earth bars, hard carrying case, and eight 1.5V AA batteries.
The Extech GRT300 4-Wire Earth Ground Resistance Tester # GRT300 is manufactured by Extech. Valley Instrument Service is an authorized Extech dealer offering full sales support, NIST-traceable calibration, and expert technical assistance.
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Contact Us or Call (661) 327-8681| Earth Ground Resistance | 2Ω/20Ω/200Ω/2000Ω |
| Earth Ground Resistance Basic Accuracy | ±(2% of reading + 3 digits) |
| Earth Ground Resistance Max Resolution | 0.01Ω/0.1Ω/1Ω/0.01kΩ |
| Earth Voltage | 0 to 300VAC (40 to 500Hz frequency) |
| Earth Voltage Basic Accuracy | ±(2% of reading + 3 digits) |
| Test Current | <2mA |
| Test Frequency | 820Hz |
| Certifications | CE |
| Dimensions | 9.8 × 7.8 × 4.3" (250 × 190 × 110mm) |
| Power | 8 × AA (1.5V) batteries |
| Safety Category | CATIV - 300V |
| Warranty | 2 years |
| Weight | 3.15lbs (1430g) |
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